Last week, Antea Group had the unique opportunity to perform a RATA (relative accuracy test audit) of the emissions from a thermal oxidizer at an ethanol production facility located in Minnesota using a state-of-the-art mobile testing laboratory. During this RATA audit, actual stack emissions levels (including NOx, SOx, CO2, CO, O2, flow rate, temperature, velocity and pressure) from the ...

Performance Specification YY details the performance requirements for a multi-metals continuous emissions monitor that utilizes x-ray fluorescence (XRF) as an analytical technique. Each XRF based multi-metals CEMS must meet the criteria for accuracy, stability, and instrumental response laid out in this document. In addition, every XRF multimetals CEMS must meet the installation requirements in ...

Method X is an instrumental analyzer procedure for the determination of multiple metals using x-ray fluorescence as an analytical technique. Method X specifies the criteria for accuracy stability and precision that must be met by an x-ray fluorescence based instrument analyzer. Method X also describes the emission test procedures associated with an x-ray fluorescence based metals measurement ...

Over the past several years, Avogadro Environmental has been working with a number of clients to develop proactive environmental programs as part of their EPA Performance Track and ISO 14001 management systems. Many client companies that are proactively implementing measures to reduce their environmental footprint are looking for ideas. Diesel engine retrofits for off-road stationary and mobile ...

Water pollution is a worldwide problem affecting developing and developed countries alike. Heavy metal contaminants are one prevalent type of water pollutant. They are persistent in the environment once d is charged and removal from source waters is necessary to ensure a clean drinking water supply. The problem of heavy metal pollution arises from several sources. Heavy metals such as uranium can ...

To prevent the most severe impacts of climate change, it is essential to limit fossil fuel use—particularly coal use in power production. The share of coal in global energy consumption is increasing, with ...

This paper concerns an integrated model testing exercise focussed on the use of model performance statistical indices. SAFE_AIR is a multisource model mainly designed to describe dispersion of airborne pollutants from point sources at local-to-regional scales over complex terrain in non-stationary meteorological and emission conditions. It was applied in the region of Ilo, Peru, a complex coastal ...

Untitled Document Point Roberts, WA, Delta B.C.- May 25, 2004 With gas prices reaching an all time high and not much promise of an end in sight, hybrid technology is falling under the lens of some careful ...

The development of a Data Assimilation algorithm based on variational approach that allows estimation of source emission rate in Lagrangian particle/puff Atmospheric Dispersion Models for non-stationary (wind and source) conditions is presented. The one-dimensional tests including constant and variable in time source emission rate and wind velocity showed that methodology can be extended to take ...

In recent years, the concern for cleaner air, along with strict air pollution regulation and the desire to reduce the dependency on fossil fuels have rekindled the interest in hydrogen as a vehicular fuel. Internal combustion engines continue to dominate in many fields like transportation, agriculture and power generation. Diesel engines are the most trusted power sources in the transportation ...

The identification and acquisition of flexible permit conditions has been essential to the successful operation and compliance status of a cardboard manufacturing site in Los Angeles. In 1999, the owner was cited for exceeding the volatile organic compound (VOC) emission limits on two stationary sources by the California Air Quality Management District (CAQMD). A notice of violation (NOV) was ...

EPA proposed three related rules (with final rules expected by December 16, 2010), intended to reduce the emission of hazardous air pollutants (HAPs) from industrial, commercial, and institutional boilers and process heaters as well as commercial and industrial solid waste incinerators. Simultaneously, it also proposed a definition of solid waste that could potentially affect some units currently ...

On March 10, 2009, EPA proposed federal greenhouse gas (GHG) reporting requirements as authorized by the FY08 Omnibus Appropriations Act (H.R. 2794; Public Law 110-161), signed Dec. 26, 2007. EPA developed the rule to collect comprehensive GHG emissions data that can be used to inform EPA and government agencies for future policy decisions. EPA’s rulemaking approach used screening criteria ...

Recent action by the US EPA to finalize the Mandatory Reporting of Greenhouse Gases (GHG) Rule means that environmental managers must now seriously examine whether they are fully prepared to address the imminent requirements. This article provides some assistance by summarizing key points regarding the final versus proposed rule, providing clarification on key questions that have arisen since the ...

Carbon dioxide emissions from the combustion of fossil fuels are a significant factor in global climate change. Large stationary sources such as coal-fired electric generating plants are likely to be the most cost-effective targets for carbon dioxide capture. At present, liquid amine-based scrubbing systems are the only processes available for this application. Processes based on regenerable ...

Industrial process operators that produce gas emissions to atmosphere are regulated by the Environment Agency. Monitoring of these emissions ensures that the environment is being properly protected and helps them manage their own impact on the environment. Under the Environmental Permitting Regulations, these sites are required to continually measure emission parameters from their chimney-stacks ...

Australia is a major nation to watch when it comes to curbing climate change. The country made an international commitment to reduce its GHG emissions by 5 to 25 percent from 2000 levels by 2020. How Australia achieves these reductions can provide lessons on how other countries around ...

The U.S. EPA revised the primary National Ambient Air Quality Standard (NAAQS) for sulfur dioxide (SO2) on June 2, 2010 by implementing a new 1-hour standard of 75 parts per billion (ppb) (calculated as the three-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations). Based on an evaluation of the risks posed by acute exposure to SO2, EPA ...

Air is lifeblood. Daily we inhale approximately 15.000 liter. Still, the air contains invisible pollutants, which vary in its composition and concentration depending on the location. Especially the respirable particles with a diameter of less than 2.5 µm (PM 2.5) were considered to be particularly dangerous. According to a current study conducted by the Max Planck Society, ...

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